The Delaware County National Bank Building was chartered in 1814, and moved its offices to the structure commonly known as The Wolf Building in 1882. Like the city that they called home, the bank and the building have had a long and storied history. For 156 years, from 1814 to 1970, the institution conducted business as Delaware County National Bank. When DCNB consolidated with the National Bank of Chester County in 1970, its name was changed to Southeast National Bank of Pennsylvania. In 1984, Southeast National was itself merged into Fidelity Bank.

Located at 3rd and Market Streets, The Wolf Building has been closely tied to Chester's economic cycles through the years. Added to the National Register of Historic Places in 1987, its unique architecture represents the city's Classical Revival period. It has served as a financial institution, as a radio station in the early days of WVCH (The Voice of Chester), and is currently owned by a communications cabling and fiber business.